Stay-bolt structure.



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STAY BOLT STRUCTURE. APPLICATION FILED APR. 25.1918.

Patented Mar. 4,1919.

A llmneys nii i IIII I MITIIHTIILWHHIIIIIIIIIIII llll mnnnumrmmuuuumllllll Hl Eil-'HAN I. DODDS, 0F PITTSBURGH, PENNSYLVANIA, ASSIGNOIR. '1'0FLANNERY BOLT COMPANY,` OIE PITTSBURGH, PENNSYLVANIA.

STAY-BOLT STRUCTURE.

Specification of Letters Patent.

Patented Mar. 4, 1919.

Application led April 26, 1918. Seria1No.230,902.

T0 all whom it may concern:

Be it known that I, ETHAN I. DoDDs, a citizen of the United States, anda resident of Pittsburgh, in the county of Allegheny and State ofPennsylvania, .have invented certain new and useful Improvements inStay-Bolt Structures; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to improvements in staybolt structures, and moreparticularly to closures therefor-the object of the invention being toprovide means for removably securing the cap or closure in place on thebearing sleeve in a manner to permit its quick removal to facilitateinspecting and testing of the bolt.

With this and other objects in view, the invention consists in certainnovel features of construction and combinations of parts as hereinafterset forth and pointed out in the claim.

In the-accompanying drawings; Figure l is a view in elevationillustrating my improvements; Fig. 2 is a sectional view; Fig. 3 is aplan view, and Fig. 4 is a sectional view partly in elevation,illustrating a modification.

y l represents a bearing sleeve having anv interior curved face 2forming a bearing for the rounded .head 3 of a staybolt l--said sleevebeing also provided, at its outer end, with an outwardly annular flange5.

A cap or closure 6 engages a recessed seat 7 at the outer end of thebearing sleeve and may be made concave over the head of the staybolt.The cap 6 is also made with an angular head 8 to receive a wrench andthe peripheral portion of said cap is threaded as at 9 to enter aninternally threaded ring or locking member 10. This annular lockingmember may be made with a hexagonal or other angular externalconfiguration to receive a wrench and it is provided with a plurality ofjaws 11 having'lips 12 to engage under the annular flange 5 at the outerend of the bearing sleeve, when the parts are assembled, as shown inFigs. l and 2.

It is apparent that when the parts have been assembled, and the cap isturned relatively to the locking member (or vice versa) said cap will betightly pressed against its seat and the jaws of the clamping memberwill become tightly clamped to the flanged outer' end of the bearingsleeve. Reversal of operation of these parts will permit the quickremoval of the cap by moving said cap and the locking ring laterallyfrom the bearing sleeve and thus facilitate testing of the staybolt andthe parts may be as quickly re-assembled and secured.

In the form of the invention shown in Fig. 4, the cap or closure is madein the form of a disk 13 having a peripheral flange 14. threadedexternally to receive the locking member and having a lip 15 to overliethe latter.

Having fully described my invention what I claim as new and desire tosecure by Letters-Patent, is

In a staybolt structure, the combination with a bearing member having anannular flange at its outer end, of an externally threaded cap seated onsaid sleeve and having a part to receive a wrench, and a locking memberthreaded on the cap and provided with jaws to engage the annular flangeon the bearing sleeve, said jaws being constructed and adapted to permitthe cap and locking member to be removed laterally from the end of thebearing sleeve.

In testimony whereof, I have signed this specification in the presenceof two subscribing witnesses.

ETHAN I. DODDS. Witnesses:

S. G. NOTTINGHAM, R. S. FERGUSON.

Copies of this patent may be obtained for iive cents each, by addressingthe Commissioner of Patents, Washington, D. C.

